81406140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{331}}^1\times {\mathrm{4099}}^1$

素因数の和:4442

約数の個数: 48

約数和(自身を含む): 228681600

約数和(自身を除く): 147275460

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 331, 662, 993, 1324, 1655, 1986, 3310, 3972, 4099, 4965, 6620, 8198, 9930, 12297, 16396, 19860, 20495, 24594, 40990, 49188, 61485, 81980, 122970, 245940, 1356769, 2713538, 4070307, 5427076, 6783845, 8140614, 13567690, 16281228, 20351535, 27135380, 40703070, 81406140]

約数ペア:

[(1, 81406140), (2, 40703070), (3, 27135380), (4, 20351535), (5, 16281228), (6, 13567690), (10, 8140614), (12, 6783845), (15, 5427076), (20, 4070307), (30, 2713538), (60, 1356769), (331, 245940), (662, 122970), (993, 81980), (1324, 61485), (1655, 49188), (1986, 40990), (3310, 24594), (3972, 20495), (4099, 19860), (4965, 16396), (6620, 12297), (8198, 9930)]